[ GLSA 200507-25 ] Clam AntiVirus: Integer overflows
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200507-25 ] Clam AntiVirus: Integer overflows
Date: Tue, 26 Jul 2005 22:36:11 +0200
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Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk,
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Organization: Gentoo Linux Security Team
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Gentoo Linux Security Advisory GLSA 200507-25
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http://security.gentoo.org/
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Severity: High
Title: Clam AntiVirus: Integer overflows
Date: July 26, 2005
Bugs: #100178
ID: 200507-25
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Synopsis
========
Clam AntiVirus is vulnerable to integer overflows when handling several
file formats, potentially resulting in the execution of arbitrary code.
Background
==========
Clam AntiVirus is a GPL anti-virus toolkit, designed for integration
with mail servers to perform attachment scanning. Clam AntiVirus also
provides a command line scanner and a tool for fetching updates of the
virus database.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-antivirus/clamav < 0.86.2 >= 0.86.2
Description
===========
Neel Mehta and Alex Wheeler discovered that Clam AntiVirus is
vulnerable to integer overflows when handling the TNEF, CHM and FSG
file formats.
Impact
======
By sending a specially-crafted file an attacker could execute arbitrary
code with the permissions of the user running Clam AntiVirus.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Clam AntiVirus users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.86.2"
References
==========
[ 1 ] BugTraq Announcement
http://www.securityfocus.com/archive/1/406377/30/
[ 2 ] Clam AntiVirus: Release Notes
http://sourceforge.net/project/shownotes.php?release_id=344514
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200507-25.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
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